diff --git a/integration/size-test/BUILD.bazel b/integration/size-test/BUILD.bazel
index a83259dfa1bf..adebe28505a0 100644
--- a/integration/size-test/BUILD.bazel
+++ b/integration/size-test/BUILD.bazel
@@ -12,6 +12,7 @@ ts_library(
     name = "check-size",
     srcs = ["check-size.ts"],
     deps = [
+        "@npm//@bazel/runfiles",
         "@npm//@types/node",
         "@npm//@types/yaml",
         "@npm//chalk",
diff --git a/integration/size-test/check-size.ts b/integration/size-test/check-size.ts
index bc1492068742..df54d6635821 100644
--- a/integration/size-test/check-size.ts
+++ b/integration/size-test/check-size.ts
@@ -7,6 +7,7 @@
 import * as chalk from 'chalk';
 import {readFileSync, statSync, writeFileSync} from 'fs';
 import {parse, stringify} from 'yaml';
+import {runfiles} from '@bazel/runfiles';
 
 /**
  * Absolute byte deviation from the expected value that is allowed. If the
@@ -30,8 +31,8 @@ type Golden = {[testId: string]: number};
  *                 with the actual measured size.
  */
 const [testId, testFileRootpath, isApprove] = process.argv.slice(2);
-const testFilePath = require.resolve(`angular_material/${testFileRootpath}`);
-const goldenFilePath = require.resolve('../../goldens/size-test.yaml');
+const testFilePath = runfiles.resolveWorkspaceRelative(testFileRootpath);
+const goldenFilePath = runfiles.resolveWorkspaceRelative('goldens/size-test.yaml');
 
 const golden: Golden = parse(readFileSync(goldenFilePath, 'utf8')) || {};
 const fileStat = statSync(testFilePath);
diff --git a/integration/size-test/index.bzl b/integration/size-test/index.bzl
index 911de20cd41e..09284f1d3980 100644
--- a/integration/size-test/index.bzl
+++ b/integration/size-test/index.bzl
@@ -52,6 +52,8 @@ def size_test(name, file, deps):
             "@npm//rollup-plugin-node-resolve",
             "@npm//@angular-devkit/build-optimizer",
         ],
+        # Link the workspace root so that files can be loaded from the workspace.
+        link_workspace_root = True,
         sourcemap = "false",
     )
 
diff --git a/integration/size-test/rollup.config.js b/integration/size-test/rollup.config.js
index 38e08cc6093d..1c9ad12a1b6f 100644
--- a/integration/size-test/rollup.config.js
+++ b/integration/size-test/rollup.config.js
@@ -1,7 +1,6 @@
-const {buildOptimizer} = require('@angular-devkit/build-optimizer');
+const {buildOptimizer} = require('@angular-devkit/build-optimizer/src/build-optimizer/build-optimizer');
 const node = require('rollup-plugin-node-resolve');
-const path = require('path');
-const {ivyEnabled} = require(getIvyEnabledHelperPath());
+const {ivyEnabled} = require('angular_material/tools/angular_ivy_enabled');
 
 console.info(`Processing rollup bundle in ${ivyEnabled ? 'Ivy' : 'View Engine'} mode.`);
 
@@ -37,14 +36,3 @@ module.exports = {
     }),
   ],
 };
-
-function getIvyEnabledHelperPath() {
-  const parts = path.normalize(__dirname).split(path.sep);
-  const binIndex = parts.indexOf('bin');
-
-  if (binIndex === -1) {
-    throw Error('Cannot resolve Ivy helper path.');
-  }
-
-  return path.join(parts.slice(0, binIndex).join(path.sep), 'bin/tools/angular_ivy_enabled');
-}